<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        .price {
            position: relative;
            width: 160px;
            height: 24px;
            line-height: 24px;
            border: 1px solid red;
            margin: 100px auto;
        }
        .price .cur {
            display: inline-block;
            width: 90px;
            height: 24px;
            font-weight: 700;
            background-color: red;
        }
        .price .his {
            display: inline-block;
            width: 60px;
            height: 24px;
            text-decoration: line-through;
        }
        .price i {
            position: absolute;
            top: 0;
            left: 75px;
            width: 0px;
            height: 0px;
            border-color: transparent #fff transparent transparent;
            border-width: 24px 15px 0 0;
            border-style: solid;
        }
    </style>
</head>
<body>
    <div class="price">
        <i></i>
        <span class="cur">￥1650</span>
        <span class="his">￥2650</span>
    </div>
</body>
</html>